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參數(shù)資料
| 型號： | T8534 |
| 英文描述： | T8533/34 Quad Programmable Line Card Signal Processor |
| 中文描述： | T8533/34四線卡可編程信號處理器 |
| 文件頁數(shù)： | 6/48頁 |
| 文件大?。?/td> | 890K |
| 代理商： | T8534 |
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Preliminary Data Sheet
July 2001
Signal Processor
T8533/34 Quad Programmable Line Card
6
Agere Systems Inc.
Pin Information
(continued)
Table 2. Pin Assignments, 44-Pin PLCC, Common Functions
Pin
1
2
3
4
Name
DO
DI
DCLK
CS
Type
O
I
I
I
Name/Description
Serial Data Output.
This is a 3-state output.
Serial Data Input.
Serial Data Clock Input.
Chip Select Input.
This pin determines the interval that the serial interface is
active.
Serial Interface Select.
Leaving this pin open places the serial interface in
the normal mode; grounding it places the interface into the byte-by-byte
mode. This pin has an internal pull-up.
Frequency Synthesizer Power (5 V).
This pin must be tied to V
DD
.
Internal Test Point.
Do not connect to this pin.
Internal Test Point.
Do not connect to this pin.
Internal
Test Point.
Do not connect to this pin.
Synthesizer Ground.
Connect to DGND. A common AGND, DGND, SGND
plane is highly recommended.
Digital Ground.
Logic ground and return for logic power supply. A common
AGND, DGND, SGND plane is highly recommended.
Digital Power Supply (5 V).
PCM Frame Strobe Input.
This 8 kHz clock must be derived from the same
source as BCLK. See the Clocking Considerations section.
PCM Clock Input.
This pin is used to develop internal clocks for certain clock
rates. See the Clocking Considerations section.
PCM Bus Output Pin.
This is a 3-state output.
PCM Bus Input Pin.
Power-On Reset.
A low causes a reset of the entire chip. This pin may be
connected to DGND with a 0.1
μ
F capacitor for a power-on reset function, or
it may be driven by external logic. This pin has an internal pull-up.
1.024 MHz Master Clock Input.
Internal timing is derived from this clock
input for certain PCM bus rates. See Clocking Considerations. When unused,
this pin may be left open. This pin has an internal pull-up.
5
INTS
I
6
7
8
9
10
FILTV
PVCOIN
PVCO
PLLT
SGND
PWR
—
—
—
GND
16, 29, 38, 44
DGND
GND
17, 28, 35, 42
36
V
DD
FS
PWR
I
37
BCLK
I
39
40
41
DX
DR
RST
O
I
I
43
MCLK
I
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